Data recovery device

Pulse or digital communications – Synchronizers – Frequency or phase control using synchronizing signal

Reexamination Certificate

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Details

C375S326000, C375S373000, C370S513000, C370S395620, C714S775000, C714S798000

Reexamination Certificate

active

07085339

ABSTRACT:
A data recovery device for precisely recovering a transmission signal even if the signal having phase variations is provided. The device comprises a demodulator for demodulating a transmission signal, a plurality of symbol recovery units, each generating a corresponding synchronous signal and a lock signal, wherein the lock signals are selectively enabled to select one of the synchronous signals, based on pattern variations of the transmission signal detected by the symbol recovery units, and a data decision unit for performing a data recovery operation using the selected synchronous signal to recover original data of the transmission signal.

REFERENCES:
patent: 5204879 (1993-04-01), McConnell
patent: 5521941 (1996-05-01), Wiatrowski et al.
patent: 5859671 (1999-01-01), Kim
patent: 6134276 (2000-10-01), Aman et al.
patent: 6504838 (2003-01-01), Kwan

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